DocumentNode (document 7.539.51 API)

java.lang.Object
- com.yahoo.document.select.rule.DocumentNode

All Implemented Interfaces:

ExpressionNode
```
public class DocumentNode
extends Object
implements ExpressionNode
```
A document node which returns a document: For accessing document field data in AttributeNode, where it should be possible to access fields both by the concrete type ("concreteType.fieldName") and by parent type ("inheritedType.inheritedField").

Author:

Simon Thoresen Hult, bratseth

Constructor Summary

Constructors
Constructor Description

DocumentNode(String type)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`accept(Visitor visitor)`	Perform visitation of this node.
`Object`	`evaluate(Context context)`	Evaluate the content of this node based on document object, and return that value.
`BucketSet`	`getBucketSet(BucketIdFactory factory)`	Returns the set of bucket ids covered by this node.
`String`	`getType()`
`DocumentNode`	`setType(String type)`
`String`	`toString()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - DocumentNode
```
public DocumentNode(String type)
```
- Method Detail
  - getType
```
public String getType()
```
  - setType
```
public DocumentNode setType(String type)
```
  - getBucketSet
```
public BucketSet getBucketSet(BucketIdFactory factory)
```
    Description copied from interface: ExpressionNode
    
    Returns the set of bucket ids covered by this node.
    
    Specified by:
    
    getBucketSet in interface ExpressionNode
    
    Parameters:
    
    factory - the factory used by the current application
  - evaluate
```
public Object evaluate(Context context)
```
    Description copied from interface: ExpressionNode
    
    Evaluate the content of this node based on document object, and return that value.
    
    Specified by:
    
    evaluate in interface ExpressionNode
    
    Parameters:
    
    context - the document to evaluate over
    
    Returns:
    
    the value of this
  - accept
```
public void accept(Visitor visitor)
```
    Description copied from interface: ExpressionNode
    
    Perform visitation of this node.
    
    Specified by:
    
    accept in interface ExpressionNode
    
    Parameters:
    
    visitor - the visitor that wishes to visit the node
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object